Examples with JsonGenerator org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonGenerator used on opensource projects

Example 86 with JsonGenerator

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonGenerator in project calcite by apache.

the class DruidQuery method planAsTopN.

@Nullable
private String planAsTopN(List<DimensionSpec> groupByKeyDims, DruidJsonFilter jsonFilter, List<VirtualColumn> virtualColumnList, List<JsonAggregation> aggregations, List<JsonExpressionPostAgg> postAggregations, JsonLimit limit, DruidJsonFilter havingFilter) {
    if (havingFilter != null) {
        return null;
    }
    if (!getConnectionConfig().approximateTopN() || groupByKeyDims.size() != 1 || limit.limit == null || limit.collations == null || limit.collations.size() != 1) {
        return null;
    }
    if (limit.collations.get(0).dimension.equals(groupByKeyDims.get(0).getOutputName())) {
        return null;
    }
    if (limit.collations.get(0).direction.equals("ascending")) {
        // Only DESC is allowed
        return null;
    }
    final String topNMetricColumnName = limit.collations.get(0).dimension;
    final StringWriter sw = new StringWriter();
    final JsonFactory factory = new JsonFactory();
    try {
        final JsonGenerator generator = factory.createGenerator(sw);
        generator.writeStartObject();
        generator.writeStringField("queryType", "topN");
        generator.writeStringField("dataSource", druidTable.dataSource);
        writeField(generator, "granularity", Granularities.all());
        writeField(generator, "dimension", groupByKeyDims.get(0));
        writeFieldIf(generator, "virtualColumns", virtualColumnList.size() > 0 ? virtualColumnList : null);
        generator.writeStringField("metric", topNMetricColumnName);
        writeFieldIf(generator, "filter", jsonFilter);
        writeField(generator, "aggregations", aggregations);
        writeFieldIf(generator, "postAggregations", postAggregations.size() > 0 ? postAggregations : null);
        writeField(generator, "intervals", intervals);
        generator.writeNumberField("threshold", limit.limit);
        generator.writeEndObject();
        generator.close();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return sw.toString();
}

Example 87 with JsonGenerator

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonGenerator in project calcite by apache.

the class DruidQuery method metadataQuery.

/**
 * Generates a JSON string to query metadata about a data source.
 */
static String metadataQuery(String dataSourceName, List<Interval> intervals) {
    final StringWriter sw = new StringWriter();
    final JsonFactory factory = new JsonFactory();
    try {
        final JsonGenerator generator = factory.createGenerator(sw);
        generator.writeStartObject();
        generator.writeStringField("queryType", "segmentMetadata");
        generator.writeStringField("dataSource", dataSourceName);
        generator.writeBooleanField("merge", true);
        generator.writeBooleanField("lenientAggregatorMerge", true);
        generator.writeArrayFieldStart("analysisTypes");
        generator.writeString("aggregators");
        generator.writeEndArray();
        writeFieldIf(generator, "intervals", intervals);
        generator.writeEndObject();
        generator.close();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return sw.toString();
}

Example 88 with JsonGenerator

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonGenerator in project build-info by JFrogDev.

the class BuildInfoExtractorUtils method buildInfoToJsonString.

public static <T extends Serializable> String buildInfoToJsonString(T buildComponent) throws IOException {
    JsonFactory jsonFactory = createJsonFactory();
    StringWriter writer = new StringWriter();
    JsonGenerator jsonGenerator = jsonFactory.createJsonGenerator(writer);
    jsonGenerator.useDefaultPrettyPrinter();
    jsonGenerator.writeObject(buildComponent);
    String result = writer.getBuffer().toString();
    return result;
}

Example 89 with JsonGenerator

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonGenerator in project build-info by JFrogDev.

the class BuildInfoExtractorUtils method buildInfoToJsonString.

public static String buildInfoToJsonString(Build buildInfo) throws IOException {
    JsonFactory jsonFactory = createJsonFactory();
    StringWriter writer = new StringWriter();
    JsonGenerator jsonGenerator = jsonFactory.createJsonGenerator(writer);
    jsonGenerator.useDefaultPrettyPrinter();
    jsonGenerator.writeObject(buildInfo);
    String result = writer.getBuffer().toString();
    return result;
}

Example 90 with JsonGenerator

use of org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonGenerator in project rpki-validator-3 by RIPE-NCC.

the class ApiConfig method customizeLinksRendering.

@Bean
public Jackson2ObjectMapperBuilderCustomizer customizeLinksRendering() {
    return (jacksonObjectMapperBuilder) -> {
        jacksonObjectMapperBuilder.serializerByType(Links.class, new JsonObjectSerializer<Links>() {

            @Override
            protected void serializeObject(Links value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
                for (Link link : value) {
                    jgen.writeStringField(link.getRel(), link.getHref());
                }
            }
        });
        jacksonObjectMapperBuilder.deserializerByType(Links.class, new JsonObjectDeserializer<Links>() {

            @Override
            protected Links deserializeObject(JsonParser jsonParser, DeserializationContext context, ObjectCodec codec, JsonNode tree) throws IOException {
                Iterator<Map.Entry<String, JsonNode>> iterator = tree.fields();
                List<Link> links = new ArrayList<>();
                while (iterator.hasNext()) {
                    Map.Entry<String, JsonNode> field = iterator.next();
                    links.add(new Link(field.getValue().asText(), field.getKey()));
                }
                return new Links(links);
            }
        });
    };
}